The purpose of this study is to find an expression method for Korean fashion design that can have competitiveness in the global fashion market. For this, fashion specialists at home and abroad were interviewed, focusing on their opinions on the Korean motifs outlined in existing literature studies. First, aesthetic sense and expression characteristics that have appeared in existing studies on Korean art, Korean traditional costume, and Korean fashion were explored. As a result, they were categorized into: Modesty/plainness, freewheelingness, religion/custom, and humor/joke. During this process, Korean design motifs were extracted based on the aesthetic characteristic and expression method of aesthetic sense. According to the opinions on Korean design motifs and Korean fashion design works drawn from the interviews with fashion specialists at home and abroad, Changhomun was the favorite design motif to be utilized in Korean fashion design. The Korean specialists thought that visual design motifs were important, while the overseas specialists had more interest in abstract design motifs, which embody the background and story behind the motif. Regarding the fashion design associated with the Korean design motif, all specialists at home and abroad favored the design using ceramics and wrapping cloth. Regarding the choice of fashion image, Korean specialists chose the design utilizing Hangeul as the most Korean, while the foreign specialists chose designs reflecting the design motifs of Hangeul and Hanbok for women. The Korean specialists chose relatively more Korean images, while the foreign specialists chose more eastern images or other images than Korean images.